最新金属粉末涂料邦定技术.pdf

一种全新的金属粉末涂料邦定生产工艺 （ 无锡维而特智能机械有限公司 陈才贵 ） 引言 粉末涂料邦定（ Bonding） 工艺， 也叫热粘接技术 ,就是在一定温度下 ,将金属颜料颗粒粘接在粉末涂料颗粒上 ,制造出具有金属效果的涂层 传统的粉末涂料邦定工艺是利用塑料行业高混设备进行一些改进，靠摩擦生热方式 来进行温控，达不到很好的邦定效果，本文介绍一种全新的邦定工艺，利用设备的特殊设计和智能温控，能在65-70℃下长时间混合不结块 ，具有很好的 邦定 效果 Powder coatings Bonding process, also called thermal Bonding technology, is under a certain temperature, the metallic pigments adhesion on powder coating particles, create a coating of metallic effect. Traditional bonding mixer is the use of plastic industry for some improvement high mixing equipment, temperature control by friction heating way, short of good binding effect, this paper introduces a new bonding process, use special design and intelligent temperature control device, can mix for a long time under 65-70 ℃ without caking, have very good binding effect. 一． 金属粉末涂料生产中 使用邦定工艺 具有以下优点： 1.开发全新环保涂层 Developing brand-new environmental coatings 如今 环保要求已不再是一种概念和意识，而是一种法规和强制，含 VOC 的液体金属效果漆将逐渐被淘汰出市场，既符合环保要求又具有金属效果的邦定粉末涂料将在这一转变中起重要替代角色。

经过邦定的粉末涂料中金属颜料含量可以加到 10%或更高，涂层效果完全可以与液体漆相 媲美谁先掌握这种邦定工艺与技术，谁就是这场变革的赢者 Nowadays environmental requirement is no longer a concept and sense, but a regulation and compulsion. The VOC paints with liquid metal effect will be gradually eliminated from market, and the bonding powder coatings complying with environmental requirement and exhibiting metal effect will play an important role of substitution in this transformation. In the bonding powder coatings the content of metallic pigment can be increased to 10% or more, and the coating effect can completely rival the liquid paints. One who is the first to master this bonding process and technology is the winner in this transformation. 2.消除涂层质量问题 Eliminating quality problems of coatings 经过邦定工艺后可以消除以下传统干混工艺出现的质量问题 The bonding process can eliminate the following quality problems existing in conventional dry mixing process: 涂层问题： 流平不好 Problems in coating: poor leveling 有砂粒 Existence of sand 有色差 Existence of chromatic aberration 容易变色 Liable to discolor 喷涂问题： 上粉率差 Problems in spraying: poor powder absorption 容易烧坏喷枪 Liable to burn out spray gun 回收粉无法使用 Useless recovery powder 3.降低 生产过程成本 Reducing cost of production 1. 同样效果的金属涂层，采用邦定工艺比传统干混工艺配方中金属颜料可少加约10%-20%，降低配方成本。

For metal coatings with the same effect, the metallic pigment in ingredient with bonding process can be approximate 10%~20% lower than that with conventional dry mixing process, enabling reduction of the cost of ingredient. 2. 采用邦定工艺后，回收粉可以重复利用，节约资源，减少浪费 With adoption of bonding process, recovery powder can be reused so as to save resources and reduce wastes. 3. 喷涂中成品率增加，降低喷涂费用 In spraying the rate of finished products is increased so as to reduce spraying expenses. 4. 由于是环保涂料，生产与使用中无需高额环保费用 Thanks to environmental coating, high amount of environment related costs are not required in production and application. 二． 金属粉 邦定工艺 传统 设备 传统的粉末涂料邦定工艺是利用塑料行业高混设备进行一些改进，靠摩擦生热方式，温度升到 50℃左右就立即放料 。

这种工艺有一些 缺点 . Traditional bonding mixer of powder coating is the use of plastic industry high mixing equipment, some improvement on friction heat production, temperature rise to about 50 ℃ immediately feeding. This technology has some disadvantages 1.生产中工艺很难控制，经常产生结块报费 It is difficult to control in production process, often produces a subscription fee 2.由于温度不够，金属颜料粘接效果差 Because the temperature is not enough, metallic pigment adhesive effect is poor 3.邦定混合时间不够，没有充分混合与粘接 Bonding mixing time is not enough, not fully mixed with adhesive 4.生产批次间存在较大质量差异 There is a big quality difference between production batches 5.由于是高速摩擦生热工艺，金属颜料受到破坏，无法生产高闪效果涂层 It can't produce high flash coatings because the metal paint is damaged by high speed friction heating process, , 6.金属颜料被打碎，引起金属颜料用量增加 Metallic pigment were broken and caused metallic pigment dosage increased 三．一种全新邦定生产工艺 A new state on bonding process 2011 年，维而特（ WISDOME）公司与德国公司合作研发的金属粉末涂料邦定混料系统问世， 是一种全新的邦定工艺， 通过对设备的特殊设计 和智能温控技术，使粉末涂料在高出物料 Tg 点以上 （ 65-70℃）进行 较长时 间 （ 3-5 分钟）的 均匀混合 。

具有以下 优点： In 2011, WISDOME company developed a new binding process through collaboration with German companies. This process can make the powder coating materials in higher temperature (65-70 ℃ ) for a long time (3-5 minutes) mixing through to the equipment of special design and intelligent temperature control technology. It has the following advantages 1.邦定过程是在恒转矩恒剪切力下进行，避免了常规邦定机高剪切力对片状金属颜料的破坏 The bonding process is conducted at constant torque and shear force so as to avoid damage of high shear force to metallic flake pigment in conventional bonding machines 2.高温长时间混合，邦定效果好 The bonding effect is very good by high temperature long time mixing 3.全程工艺由电脑智能控制，无需人的干预 The entire process by the computer intelligent control 4.温控精确，邦定过程中温度能控制在± 1℃ Material temperature can be controlled precisely during bonding 5.不会结块，无浪费产生 Material sticking will not happen during production.. 6.生产出的产品批次稳定 Product batch quality stability 7.生产过程自动化，减少劳动强度 The bonding system takes automa。